huà zhěng wéi líng
to break up the whole into pieces (idiom); dealing with things one by one
divide and conquer
化
huà
to make into
整
zhěng
(bound form) whole; complete; entire; (before a measure word) whole; (before or after number + measure word) exactly
为
wéi
variant of 為|为[wei2]
零
líng
zero